高速柴油机电控系统电控单元的研制

本文进行了柴油机电控系统电控单元（ＥＣＵ）硬件系统和控制软件的设计，确定了ＥＣＵ系统的总体设计方案，并进行了电控单元功能的分析。设计了ＥＣＵ硬件系统的主控系统电路、输入接口电路、驱动电路等。采用现代软件工程技术进行电控系统控制软件的分析和设计，设计出了具有层次体系的模块化结构控制软件。     

发动机冷启动试验数据采集系统

就发动机冷启动试验数据采集系统软硬件的研制开发进行了论述，从发动机冷启动试验过程出发，合理有效地设计系统软硬件，设计中兼顾了系统的便携性、实用性、操作简单性、可靠性以及后处理的智能化，该系统为发动机的研制开发提供了强有力的技术支持。     

农村能源计算机管理系统的研制

本文分析了农村能源管理系统的特点，设计了农村能源计算机管理系统，介绍了该管理系统的结构、数据库设计及程序设计思想，并对该系统进行了评价。通过对系统调度运行表明，该系统通用性好，操作方便，因此，利用计算机进行农村能源管理，对提高农村能源管理水平具有重要的现实意义。     

生物质气化试验台监控系统设计

介绍了山东省能源研究所自主设计的生物质气化试验台监控系统，阐述了该系统的设计思路，软、硬件组成等，为其他生物质试验台自动化监控系统的设计提供了借鉴经验。     

高速柴油机电控系统电控单元的研制

本文进行了柴油机电控系统电控单元硬件系统和控制软件的设计，确定了ＥＣＵ系统的总体设计方案，并进行了电控单元功能的分析。设计了ＥＣＵ硬件系统的主控系统电路，输入接口电路，驱动电路等。采用现代软件工程技术进行电控系统控制软件的分析和设计，设计出了具有层次体系的模块化结构控制软件。     

光伏系统应用中的若干误区

阐述了光伏系统设计的重要意义，讨论了光伏系统设计的原则，并针对光伏系统设计和建造中存在的问题进行了分析。     

东莞糖厂循环流化床锅炉设计特点

本简要介绍了广东省东莞糖厂135MW循环流化床锅炉本体、燃烧系统、石灰石系统、除灰渣系统等的主要设计特点和配置，结合工程的实际应用，归纳和总结了循环流化床的特点，供同类电厂设计参考。     

共轨电控式燃油溶气喷射系统的研究与开发

论述了一种新型燃油喷射系统的研究设计方案。该燃油系统针对“溶气柴油”这种特殊燃料的需求而设计，目的在于同时降低柴油机排放中的NOx和碳烟微粒。喷油系统基于液压共轨式电控原理而设计，通过在共轨腔和喷油嘴之间安装液压活塞既实现了工作油与燃油相分离，又实现了中、低压供油，高压喷射的目的，降低了加工的难度，同时解决了“ 溶气柴油”供油系统中气体易析出的难题。对电控系统中的关键部件－－三通电磁阀的设计、加工和结构及喷油率的影响进行重点研究。在自行设计的电控喷油系统试验台上对该系统进行了集体雕式和初步试验，试验结果达到了预期的设计目标。     

隔板计算机辅助工艺设计

本系统是东方汽轮机厂汽轮机隔板的计算机辅助工艺设计的实用系统，着重讨论了隔板的计算机辅助工艺设计的方法，基本解决了零件信息的描述与输入、工艺数据的处理、数据的传输、工艺文件的输出等问题，实现了隔板的计算机辅助工艺设计，为进一步在工艺设计中应有和计算机打下了一定基础。     

百万千瓦超超临界机组凝结水系统优化探讨

百万千瓦超超临界机组凝结水系统的设计充分借鉴了国内外的先进设计理念，系统配置力求简单实用，在保证机组运行安全、可靠的前提下，对凝结水系统进行了优化，合理减少了备用设备和备用容量，以较低的投资达到较高的系统可靠性。     

电热锅炉蓄热在空调采暖系统中的应用

介绍了电热锅炉蓄热的意义、系统形式及原理，在实例中对系统设计提出了新思路，并介绍了电热锅炉及蓄热槽的选型。     

蓄冷空调系统经济分析与比较

建立了常规空调系统和蓄冷空调系统经济分析模型,关利用该模型分别对水蓄冷系统,冰蓄冷系统和共晶盐蓄冷系统的经济效益进行了计算分析与比较,其结果可供有关决策部门参考。     

Thermal performance evaluation of active and passive water heat-storage schemes for solar energy applications

Because of easy availability and low cost, water is commonly used as a sensible heat-storage medium in solar energy applications. In this investigation two schemes of water thermal storage (active and passive) were designed and constructed from readily available materials. A dynamic computer model was developed to predict the thermal performance of the water thermal-storage systems under various charging and discharging conditions. Experimental tests were also conducted. The simulated results and measured data compared favourably, and these results showed that the water thermal-storage systems responded well to step and fluctuating input temperature changes. The water thermal storage may be satisfactorily used in varied solar energy applications where energy storage is necessary.     

The impact of thermal storage on the operational behaviour of residential CHP facilities and the overall CO2 emissions

When evaluating the environmental impact of small-scale cogeneration facilities, two important boundary conditions are often overlooked. Firstly, cogeneration units are mostly considered as stand-alone facilities, although, in reality, they will be part of a system that may also contain a thermal-storage tank and back-up boiler. Secondly, usually mainly static and simplified methods are used to calculate the possible reduction of CO₂ emissions. In this paper, these issues are discussed in two parts. The dimensioning of cogeneration facilities to fulfil a certain heat demand and the impact of thermal-storage tanks on the operational behaviour of these units are dealt with. It is shown that the use of thermal-storage tanks prolongs the yearly operation time of a CHP facility and allows the cogeneration unit to operate more continuously. Also, it is clarified how to interpret thermal load-duration diagrams in a correct way. Furthermore, the impact of thermal storage on the overall CO₂ emissions is investigated. Hereby, the interaction with the expansion of the central power system and the annual use of the cogeneration units are two important parameters. Using a small thermal-storage device causes the net reduction of CO₂ emissions, in comparison with a reference scenario without additionally installed cogeneration, to be almost three times higher compared to the case without heat buffer. Finally, it is shown that the operational behaviour of multiple small-scale cogeneration units can be approximated by the behaviour of one large fictitious unit for the determination of the net reduction of CO₂ emissions.     

关于鼓励发展低速电动汽车的建议

发展电动汽车是实现绿色交通的重要措施之一。我国目前鼓励发展高速电动汽车,但从实际销售情况看,低速电动汽车占据明显的市场优势。当前高速电动汽车的质量无法与传统燃油汽车相比,充换电站数量少且投资高,充电时间长。世界许多国家都对低速电动汽车持积极扶持的态度,制定了相关政策和配套制度,并取得了一定的积极效果。我国对低速电动汽车的政策不明朗,目前处于灰色地带,业内反对发展低速电动汽车的理由是目前在车速、质量和管理等方面都不达标,铅酸电池存在污染问题等,而这些问题都可以在短期内得到解决。我国应该对低速电动汽车实行适度补贴和税收优惠,完善生产企业资质管理,加强生产标准及市场准入制度研究,扭转管理不规范的局面,强化质量及安全监督体制,规范低速电动汽车的交通管理,对电动汽车实行分类管理。     

Review on thermal energy storage with phase change materials and applications

The use of a latent heat storage system using phase change materials (PCMs) is an effective way of storing thermal energy and has the advantages of high-energy storage density and the isothermal nature of the storage process. PCMs have been widely used in latent heat thermal-storage systems for heat pumps, solar engineering, and spacecraft thermal control applications. The uses of PCMs for heating and cooling applications for buildings have been investigated within the past decade. There are large numbers of PCMs that melt and solidify at a wide range of temperatures, making them attractive in a number of applications. This paper also summarizes the investigation and analysis of the available thermal energy storage systems incorporating PCMs for use in different applications.     

一种基于联合动力装置的船舶电力推进原动机模块

电力推进以其诸多的优势成为未来海军战舰的主流推进模式,目前世界上几支主要海军都在考虑如何在战舰上研制和引入综合全电力推进(IFEF)系统,本文结合柴燃联合动力装置试验台提出以联合动力装置作为船舶电力推进原动机模块。并深入研究功率分配和单一工作并车的情况,为船舶电站的设计提供了一种新思想。     

Analysing the effect of the laeh in the storage tank on the performance of a tsaeh

When an auxiliary electric heater (AEH) is incorporated in a thermosyphon solar water system, the system performance becomes more complex and it is more difficult to simulate and analyse its operational characteristics. Using a ‘fixed-node, equally-convecting-mixing model’ that they have developed, the authors perform detailed simulations and analysis of the effects of the location of the auxiliary electric heater (LAEH) in the storage tank on the performance of the thermosyphon solar water system with an auxiliary electric heater (TSAEH), and discover for the first time some new laws governing the system operation. The authors believe that their simulations and analysis will be very beneficial for optimal design and practical application of such systems in the future.     

核电站应急柴油发电机组调速系统对电气指标的影响

针对某核电站应急柴油发电机组在进行BASS55试验时机组频率恢复时间超差的问题开展相关试验研究.试验表明:发电机组在应急启动时突加较大感性负载,容易造成低频及稳态恢复时间超差等问题;通过优化匹配电子调速器的PID控制参数,可使机组的电气指标满足技术要求;柴油机以及调试系统、发电机以及励磁系统等是影响应急柴油发电机组电气...     

Impact of electric vehicles on a future renewable energy‐based power system in Europe with a focus on Germany

Electric mobility is expected to play a key role in the decarbonisation of the energy system. Continued development of battery electric vehicles is fundamental to achieving major reductions in the consumption of fossil fuels and of CO₂ emissions in the transport sector. Hydrogen can become an important complementary synthetic fuel providing electric vehicles with longer ranges. However, the environmental benefit of electric vehicles is significant only if their additional electricity consumption is covered by power production from renewable energy sources. Analysing the implications of different scenarios of electric vehicles and renewable power generation considering their spatial and temporal characteristics, we investigate possible effects of electric mobility on the future power system in Germany and Europe. The time horizon of the scenario study is 2050. The approach is based on power system modelling that includes interchange of electricity between European regions, which allows assessing long‐term structural effects in energy systems with over 80% of renewable power generation. The study exhibits strong potential of controlled charging and flexible hydrogen production infrastructure to avoid peak demand increases and to reduce the curtailment of renewable power resulting in reduced system operation, generation, and network expansion costs. A charging strategy that is optimised from a systems perspective avoids in our scenarios 3.5 to 4.5 GW of the residual peak load in Germany and leads to efficiency gains of 10% of the electricity demand of plug‐in electric vehicles compared with uncontrolled loading.